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Video Demo: Single Pair Ethernet to Remotely Monitor Vibration
From sensor to data, this demonstration of 10BASE-T1L SPE walks through an actual use case from the deep depths of the SparkFun basement.
Battery Technologies
February 6, 2013
The basics behind the batteries used in portable electronic devices: LiPo, NiMH, coin cells, and alkaline.
Measuring Internal Resistance of Batteries
May 5, 2016
Classroom STEM activity that has students build a battery from a lemon, measure the open and closed circuit voltages, and determine the battery's internal resistance.